The Omega Seamaster Diver 300M Co‑Axial Master Chronometer 42mm 210.22.42.20.01.002 is a professional diving watch designed for underwater adventures. It features a sleek and stylish design with a black dial and a unidirectional rotating bezel with a diving scale. The watch is water-resistant up to 300 meters and features a helium escape valve, which allows the watch to release any gas that may have built up during a deep dive.

The watch is powered by Omega's Co-Axial Master Chronometer Calibre 8800, which is certified by METAS and provides precision and reliability. The movement has a power reserve of 55 hours and is resistant to magnetic fields up to 15,000 gauss.

The watch also features a date window at the 6 o'clock position. Overall, the Omega Seamaster Diver 300M 210.22.42.20.01.002 is a high-quality and stylish watch that is ideal for divers and watch enthusiasts alike.